diff --git a/execabs/execabs_go118.go b/execabs/execabs_go118.go
index 23f4d6e..6ab5f50 100644
--- a/execabs/execabs_go118.go
+++ b/execabs/execabs_go118.go
@@ -3,6 +3,7 @@
 // license that can be found in the LICENSE file.
 
 //go:build !go1.19
+// +build !go1.19
 
 package execabs
 
diff --git a/execabs/execabs_go119.go b/execabs/execabs_go119.go
index 6db6819..1e7a9ad 100644
--- a/execabs/execabs_go119.go
+++ b/execabs/execabs_go119.go
@@ -3,6 +3,7 @@
 // license that can be found in the LICENSE file.
 
 //go:build go1.19
+// +build go1.19
 
 package execabs